Research Article

Comparative Study of the Morphology of the Ovipositor of Platygaster diplosisae (Hymenoptera: Platygasteridae) and Aprostocetus procerae (Hymenoptera: Eulophidae) Two Parasitoids Associated with the African Rice Gall Midge, Orseolia oryzivora (Diptera: Cecidomyiidae)

Table 3

Main biological features of O. oryzivora (host), Platygaster diplosisae, and Aprostocetus procerae (parasitoids). (According to Nacro and Nénon, 2006.)

NatureAverage potential fecundityAverage fertilityEggs’ envelopes thicknessLength of the ovipositorDistribution of the sensorial organs on the ovipositorNature of the parasitism

O. oryzivorahostHigh (300 eggs)Medium (35.6)Thin (0.7  m)
P. diplosisaeparasitoidVery highNot assessedVery thin40  mMainly distributed on the distal portion of valve 3 Mechanoreceptors and chemioreceptorsGregarious endoparasitism of the egg or L1 of the host
A. proceraeparasitoidLowNot assessedThin1.2  mwell distributed on the different parts of the ovipositor Mechanoreceptors and chemioreceptorsSolitary ectoparasitism of the pupae of the host